/*

  MusicXML Library
  Copyright (C) 2007  Grame

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  Grame Research Laboratory, 9 rue du Garet, 69001 Lyon - France
  research@grame.fr

*/

#ifndef __cloneVisitor__
#define __cloneVisitor__

#include <stack>
#include "visitor.h"
#include "xml.h"

namespace MusicXML2 
{   

/*!
\addtogroup visitors
@{
*/

/*!
\brief A visitor that clones a musicxml tree
*/
class EXP clonevisitor : 
	public visitor<Sxmlelement>
{
    public:
				 clonevisitor() : fClone(true) {}
       	virtual ~clonevisitor() {}
              
		virtual void visitStart( Sxmlelement& elt );
		virtual void visitEnd  ( Sxmlelement& elt );
		
		virtual Sxmlelement clone()	{ return fStack.top(); }

	protected:
		virtual void			clone(bool state)	{ fClone = state; }
		virtual void			copyAttributes (const Sxmlelement& src, Sxmlelement& dst);
		virtual Sxmlelement		copy (const Sxmlelement& elt);
		virtual Sxmlelement&	lastCopy ()	{ return fLastCopy; }

		bool					fClone;
		Sxmlelement				fLastCopy;
		std::stack<Sxmlelement> fStack;
};

/*! @} */

}

#endif
